1) generalized side lobe canceling
广义旁瓣对消
1.
A better blind beamforming algorithm using the idea of generalized side lobe canceling is proposed.
提出了一种利用广义旁瓣对消思想进行盲波束形成的改进算法,新算法在基于循环频率的盲波束形成算法的基础上,通过在辅助支路利用干扰信号空间的投影矩阵对阵元接收到的信号进行降维处理,并对辅助支路的权值进行自适应求解,有效抑制了干扰信号。
2) generalized sidelobe canceller(GSC)
广义旁瓣对消器
1.
A real-time and robust beamformer in the presence of array imperfection is presented based on the generalized sidelobe canceller(GSC) structure and is improved by changing the block matrix into an adaptive one in the frequency domain.
由于自适应阵列天线的幅相误差会引起线性约束自适应波束形成器的期望信号相消,本文根据微型飞行器自适应天线系统的设计,基于广义旁瓣对消器(G SC)结构,在频域中将阻塞矩阵赋予自适应功能,进而得到了一种改进的,可行的,稳健的自适应波束形成器。
3) general sidelobe canceller (GSC)
广义旁瓣抵消
1.
In order to improve the performance of general sidelobe canceller (GSC) based speech enhancement, a leakage constraints decision feedback generalized sidelobe canceller(LCDF-GSC) algorithm is proposed.
为了改善广义旁瓣抵消(GSC)语音增强方法的性能,提出了一种带有泄漏约束的判决反馈旁瓣抵消(LCDF-GSC)方法。
4) generalized sidelobe canceller
广义旁瓣抵消器
1.
To cancel the interfering signals more effectively,the output of the block matrix in the generalized sidelobe canceller(GSC) is accumulated and used as the input of the adaptive interference cancellers.
为更好地抵消干扰信号,对广义旁瓣抵消器堵塞矩阵输出信号进行累加处理,得到与干扰信号相关性更强的信号,作为自适应干扰抵消器输入,提高了信干比增益;并提出了采用一个自适应干扰抵消器的系统简化结构。
2.
Then, a detailed analysis of the Generalized Sidelobe Canceller structure is given.
详细讨论了广义旁瓣抵消器结构麦克风阵列语音增强的算法,并仿真了该算法。
3.
Study on Microphone Array Speech Enhancement Algorithm Based on Generalized Sidelobe Canceller;
本文采用基于广义旁瓣抵消器结构的波束形成的麦克风阵列语音增强的算法。
5) Generalized Sidelobe Canceller
广义旁瓣相消器
1.
Microphone Array Speech Enhancement Based on Subband Generalized Sidelobe Canceller;
基于子带广义旁瓣相消器的麦克风阵列语音增强
6) sidelobe cancellation
旁瓣对消
1.
The effect of multiple jammers distributing jamming opposing sidelobe cancellation is analyzed through model building and simulation,which is on the base of the principle of sidelobe cancellation.
在简要分析旁瓣对消原理的基础上,通过建模与仿真对多干扰机分布式干扰对抗雷达旁瓣对消的效果进行了分析,结果表明,多干扰机分布式干扰是对抗旁瓣对消的有效技术途径。
2.
To cancel such interference, the spatial adaptive beamforming and sidelobe cancellation based on the horizontal auxiliary antennas are used in this paper.
在拥挤的高频波段,高频地波雷达受短波电台的影响而不能正常地进行工作,空域波束形成和基于水平天线辅助旁瓣对消的干扰抑制方法被用来对消此类电台干扰。
3.
The paper suggests the method that we jam the radar with sidelobe cancellation by some jammers in different directions, and the number of jamming sources is more than the number of repetition of sidelobe cancellation, namely the multidirection saturated jamming technique.
采用干扰源数大于雷达旁瓣对消重数的方法对旁瓣对消雷达实施干扰,并将干扰源布置在不同的方向,即方位饱和干扰。
补充资料：超低旁瓣
为了增强现代舰用天线系统的抗干扰能力,必须提高天线旁瓣的测量精度.
基于此给出了用平面近场技术测量超低旁瓣天线时,旁瓣测量总误差与待测天线参数、近场幅相随机误差的数学模型:在相同的测量条件下,天线旁瓣越低,旁瓣测量误差越大;
旁瓣测量总误差随着近场测量幅相误差的增大而增大;近场分布的口径效率与旁瓣电平的误差方差成反比.
建立了近场幅相随机误差所引起的误差谱的表达式.对随机误差对远场方向图的影响进行了计算机仿真验证:结果表明,幅相误差主要影响远场方向图的旁瓣;该验证方法首次采用阵元数较少的线阵,仿真效果接近采用多阵元平面阵的情况.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条